[iText-questions] writeSelectedRows

[Jpenuela]

I get the error "java.lang.RuntimeException: The table width must be greater than zero." when I call  PdfPTable method writeSelectedRows(0, -1, 0,740, cb) but it works fine when I call Document .add(element) with the same PdfPTable.   Any idea?   Here is the code (cb is PdfContentByte initialized in the onOpenDocument method):    public void onStartPage(PdfWriter writer, Document document)   {int amplada[] = {100};     try     {  cb.beginText();       cb.setTextMatrix(196,805);       BaseFont bf = BaseFont.createFont(BaseFont.TIMES_ROMAN,BaseFont.CP1252,BaseFont.NOT_EMBEDDED);            cb.setFontAndSize(bf,8);       cb.showText("ESTUDIANTS D'ESTADA TEMPORAL UB - MODALITAT INTERCANVI");       cb.endText();          PdfPTable t = new PdfPTable(1);        t.setWidths(amplada);        t.setWidthPercentage(100);               t.addCell(new Phrase("CURS ACADEMIC"));        document.add(t);   // IT WORKS FINE        t.writeSelectedRows(0, -1, 0,740, cb);  // IT give the exception            }     catch (Exception e)     {e.printStackTrace();}       }